Milling-machine



c. GABRI'ELSON.

MILLING MACHINL 'APPLICATION FILED NOV. 23,1917. RENEWED MAY 13,1920.'

1,369,416. Patented Feb. 22, 1921,.

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MILLING MACHINE. APPLICATION man Nov. 23, |911. REuEwED un 1a, 1920.

Patented. Feb. 22, 1921.-

l/vl/E/vrbn Carl Gabr'z'elson BY l Maa/4x4 A TTORNEY Patented Feb. 22, 1921.

4 SHEETS-SHEET 3- HV1/5111101? CarZ Gabrielson.

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A TTOH/VEV jc. GABRIELSON. E.

APPLlcmon FILED Y. l 17. RENEwEn rw( 13,1929, 1,369,416-, minted-Feb. 22,1921.

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nutren STA'ES PAT sur orifice.

CARL oesnrntsolv, or sYnAoUsE, NnWYoaK, .assrsuon To GABnrnLsoN MANUnAo. TUBING conformaron, or sYnAoUsn, NEW vom; A CORPORATION or NEW YORK.-

MILLINGMACINE.

Application led November 23,1917, serial No. 203,609. RenewedV May 13,`

To aZZQwwm it may concern; Y

.Re it known that CARI. GaumnLsoN, a citizen ot 'he' United States, residing at Syracuse', in the county. ot Onondaga and State oi" New York, have inventedlcertain new and useful Improvements -iu Milling- Machines, of which the following is a' specitication. j u

, T his invention relatos toY improvements in millingmachines and the like, and has for its object to provide a novel and moresim# ple and powerful drive-mechanism .tor the operative parts` of milling ymachines gener-V ally. A. furtherobject is to provide novel Y and simple means for adjusting the spindle,

which supports and operatesthe cutters, longitudinally and vertically'relatively to the vvorlosupporting table.

The present invention relates particularly o what is known as manutacturingF or plain milling' machines, distinguished from the common universal' millers, and wherein 'the 'rlto Vbe performed by `the machines Tv' A usually comprises them. steelt parts which ent'erlinto the structures 'ot various produ The majority ot'` the plaii millingv machines now inf-use are too expensive ttor the ordinary manufactur- .in oj .Worin principallyk because vcnn` prise too complicated table adjusting and loci-fin neclianisfns. Furthermore, the said adiustingmerhanisms oi" lie olderlmachmes less faulty andunreliable,- thereby contributingv to many inaccuracies fWhich must be afterward corrected. A vvparticular objection to these older machines has been found to arise'irom the tact that the principal ad-v `ll ing ot similar loi" e heen `found by applicant to he more or justing and locking means,l as a rule,have

been located near, or have been associated With the' Work-supporting' tables, which are usually adjustable longitudinally, vertically, aswell as transversely, While the spindles, as

a rule, are non-adjustable, and owing to the' location and arrangement ot such adjusting mechanisms, the Work-suppertinggr tables are subject to more or less lost-motion or looseness, which frequently allows them to yield, spring; or chatter underthe heavy pressure necessarily exerted by the cutters upon `the metal articles operated upon While doing their Work. i A

It is a particular object of my invention toyprovide a novel and strong; support for the cutter-supporting spindle, and to utilize 'Work-supporting-table, which is limited 'to with* the Worlotable.

' Fig. 7

Work table 5 andfis fitted'with a cap'GLv Specification of Letters Patent.' Patented `22, 1921i i Y1920. serial No; 381,218.

the said support -tor theV principal adjustingv element, for providing all adjustments of the cutters relativelyto the Worli upon the table. A l'urther particular object is' to provide a (30 the longitudinal adjustment, the said table beingF preferably operatively supported upon a. substantial stationary7- bed or support, Atermino; a part ofthe bodv-of the machine. A further particular object is to apply improved land powerful. locking' means 'to the new spindle support, the said adiusting and locking means being .entirelydisassociated I And awturther-obiect 1s to p generally improve and simi'iliifvlthe construction andoperation, as Well as 'to' rf duce the cost of millingd machines o't' the class. l attain these :objects by the means set forth inthe detailed description which fol lows, and illustratedby the aCcompany'-`` i drawings, in ,Which-` i A, Figure luis a side elevation, With'parts'vv broken -aivayot Vthepcon'nlete milling machine; Fig'. isvan end elevation et .thev same'. Figa 3A isja horizontal section, taken on line ot Fig. l, Filo'. 4C is anenlarged vertical. section, taken on line /l-llf of Figs. l and 3; slioivingjthc main 5 ".inechanism for thefspindle'. Figv an enlarged vertical seetiononline 5 Y t 1;'showby the spindle u enlarged lView oi horizontalli. Fie'. Gis a a7 is Fig. 7 is an enlargedsection, on line-7- Figs. l and 3; showing/the mechanism for adjusting thelspindle vertically also showing the novel and powerful means' for lockingthe spindlek in. the` adjusted positions,l Figs, 8 is a` detaily of the' Worm shown in In the drawing, 2`Irepr`esents :the body of the .milling machine, which is preferably-of the plain or manufacturing` type, havingnear its upper end a,laterallyextending bedor ledge, 4, upon which is movablydisposed the fusual Work-supporting table.` The top face of the bed @andv Jthe underside `ot" the. table V5A are provided with the usual-dove. tail structure, as bestseen at 5@L in Fig. 1. Thetable 5 is'preterably onlymovable lon- Vgitudinally, by a feeding mechanism which Will be described lateron. `Thebody 2 is pieferably` hollow and extends vabove the Cil 7 represents the spindle which supports and operates the rotary cutters, as 8. The

spindle vl preferably extends'V horizontally through .the extended top 2 of the body, thence across the table 5 and its adjacent end is journaled in an eccentric bearing 9,

ywhichis movably supported in an upwardly posite ends of a relatively heavy sleeve or cylindrical support 12, which is movably supported for rotary and longitudinal adjustment in a suitable horizontal opening er bore 13 in thebody 2. The spindle 7 is held from endwise movement in the sleeve 12 by nuts 14-14, in the usual manner. lt will be seen by reference to Figs` 2, 3, 4 and 7 that the spindle 7 is disposed eccentrically in the sleeve 12, corresponding to the positioning of said part in the bearing 9. The sleeve 12 has two diameters, and the opening 13 in the body 2 is arranged the saine. The sleeve 12 also has a transverse cut-eut or notch 12 intermediate its ends, as best seen in Fig. 3. The said cut-out extends circumfercntially from the top of the sleeve to a point below the longitudinal eenlter, and within this cut-out is disposed a spur-gear 15, which is rigid on the spindle 7 (see Figs. 3 and 4) by means of a key 15.

The drive for the spindle consists Aof the following novel and powerful mechanism: 17 represents a shaft, which is suitably jourT naled at 1.7 in the body 2', parallel to and Ypreferably in the same plane as the table 5. lne end of shaft 17 is `fitted with a pulley 18, which may be driven by a 1eelt 18". The opposite end of said shaft is fitted with a spur-gear 19 for driving the table-feeding "1; mechanism. Intermediate its ends shaft 17 supports a worm 20, which meshes with and drives a worm-gear 21, the latter being fluitably positioned in a hollow or cavity 22 cil the bed-yv 2 extending upwardly from the :Lfwerin 20. VThe gear or member 2lis preferably supported at its opposite sides by ball-bearings 28, which in turn are supported bythe body 2 `(see Fig. 3). The gear or member 21 is preferably a ring, and its inner circumference is provided with teeth 21'; which mesh withV andvdrive the'spur- .gear `carried by the spindle 7 (see Figs.

il and 4). The annular member 21 prefer-v ably encircles the sleeve 12 and is concentric 'to said sleeve. By the provision of the worm V20 and the gears 21 andy 15. I am able to greatly increase the power of the spindle drive', by the employment of but a few sim ple andV compactly arranged parts. The

spur-gear v15 is preferably considerably smaller in diameter than the internal gear 21', which permits the spindle 7 and the gear 15 to be disposed eccentrically within the gear 21. This construction and arrangement enables me to provide in a novel way for the adjustment of the spindle 7 and the cutters 8 vertically, toward and away from the table 5, for compensating for the gradual wearing away of the cutters by frcquent grinding or sharpening of the same. The said construction also permits the cutters to be adjusted readily, quickly and accurately for increasing and'decreasing the depth of the cutsv upon certain kinds Vof work (see range of adjustment of spindle shown by full and dotted lines in Fig. 7).

The adjustment of the spindlel vertically, as described, is accomplished in the -following manner: Referring'to Fig. 7, the en-k larged end of theY cylindrical. sleeve 12 is journaled iii the body 2, and upon itsv outer top surface is provided a series of teeth 24, which are engaged by a worm 25, the latter being rigid on a shaft 26, which is partially journaled in a stationary sleeve 27 and partially in the body 2. The outer or right end of the shaft 26 is. fitted with a handwheel 28 having a handle 28', by whichtlie shaft 26 and the worm 25 are rotated, for raising and lowering the spindle 7 relatively te the table 5,'to the extent shown by full and dotted lines or circles in Fig.'7, in which the full lines show the greatest adjustine-nt downwardly, while the dotted lines show the mean, aswell as the greatestustment the spindle upwardly, it beine' understood that the arc through whichr ("5 the spindle is adjustablev is concentric with tht-center of the annular member 12 so that in any positioii'of adj ustiiientthe spur gear 15 will remain in complete mesh with the gear teeth on the inner circumference of saidfmember 12;V It will be seen that the bearing 9 must rotate correspondingly to the sleeve 12 during the vertical adjustment of the spindle and cutter.

lUtl

iio

In carrying out many of the milling op-` Y craticns on machines of the character shownaiid described,y it is necessary to irequent/ly'` adjust" the cutter S horizontally `for increasing er fruing up the cuts, or forthe pur'- pose cf setting the cutters for doing exact work after the article to be operated. upon has been secured to the table 5.V The horizontal ustment of thecutter and spindle is accomplished by the following means; Referring to Figs. 5 and 6, the topv surfaceA` iis l A being interposed between the collar and said y in opposite directions moves the main sleeve l2 and also the spindle horizontally corre spoiidingly, for adjusting the cutter relatively to tie table 5, as slioivii by the full and dotted lines in Fig. l. For this purpose the gear l5 is broader than the internal gear 2l', as shown. i

Y' In order to insure perfect and accurate Work by the cutters 8. it is necessary to rigidly hold the spindle in either position to which it may be adjusted., and for thisl purpose, l provide a loch which comprises a sleeve 29, which is movable longitudinally iii a bore or hole 29 in the body 2. pli bolt 30 passes loosely through the sleeve 29, the outer end of the bolt having a head by which it may be niai'iipulated, While the opposite end is threaded at 3l and screws into a threaded socket 3l. '.l` he turning ofthe bolt 3G' in one direction forces the sleeve tion 29 frictionally engages the periphery of the main sleeve l2, at the greatest distance from its airis and firmly holds the latter from movement in Vany direction. A second siinilarlocking device for sleeve l2 (not shown in detail) is indicated by 30 in Fig. 1. rlhe turning of the bolts ()l inthe opposite direction g releases the locking sleeves by the expansion `of springs S2.

' Fig. S is a view of the Worm 25 shown in Fig. i. is this Worm iseonstantly in lengagement- With the teeth 24. in order to perthe sleeve l2 to be shifted endtvise, the Worm is disposed atY an angle relatively to the Qaidrteetli, as indicated by the 'brokeny lines ,4r- B in Fig. 8, in ivhich the line A indicates the right line across the threads 24, While the line E indicates the amount of slreiv or angularity of the Worin required to Vallow the sleeve l2 tobe moved eiidwise, as

described. v i

The automatic feeding mechanism ior the table 5 consists of a raclr 40. disposed on the bottom-side of the table, which is engaged by a pinion 41 mounted upon the upper end of a shaft 42, which is journaled in bushings 43 and 43 (see Fig. l). 44 represents a Worm journaled on the bushing 43 having a hub 44. the upper side of which is provided with clutch teeth 45. 46 represents a collar or sleeve which is keyed to and therefore movable with shaft 42 above and concentric to the hub 44', the said collar having clutch teeth T he collar 46 is slidable on shaft 42 and is normally held out of engagement with the hub 44 by `a spring 47, the latter hub. 48 represents a Worm for driving the gear 44 and is mounted onashaft 49, the

said shaft also supporting a Worm-gear 50,

I the scribed. The lever 57 is held in the operative position by a bell-crank latch 58'. The

29 inwardly so that a flat orvie'dge-lilie' por-,

which is driven by a `Worm 5l carried by a shaft 52. Shaft`52 supports a spur-gear 53, which is driven through intermediate gears 54 and 55 by the gear 'i9 carried the shaft; 17. iepresents a` crankshaft, one end ofi which connects With the collar 46, the outer end of said shaft being fitted with a lever 57 (see Fig. 2). rllio setting of the lever 5T in the horizontal position, as shown, moves the collar 46 downwardly and engages the clutch teeth 45"-45, andoermits the feeding of the table 5, through the working of several. Worms ano gears above derelease of the latch allows `the spring` 4T to separa'tethe collar 46 from the hub 44. for stopping thefeediiig of the table 5.

ln case it is desired to feed the table 5 by hand, the clutch 45--45l is first released, asdescri-bed, ,after which the operator inaiiipulates a hand-Wheel 59 mounted on a shaft 60, to the inner end of which is iitted a bevel-gear. 6l, which meshes with a similar `gear 62 carried by the lower end of shaft 42. The turning of the Wheel 59 iii opposite directions reciprocates the table 5 the same as the V automatic feeding mechanism referredto. vi The foregoing describes my invention.

Tha-t I claim, is-

l. The combination with a Work-table and a frame, of 'a cylindrical sleeve rotatably and slidably supportedin said frame, a cutter spindle journaled inlsaidsleevaan annular gear surrounding said sleeve constantly in mesh with va pinion carried by said spindleadapted to drive said spindle independently of said sleeve, a Worin engaging mutilated kteeth on said sleeve for rotating 'said sleeve for adjustingsaid spindle vertically relatively toA said table, and means for locking said sleeve in the adjusted positions. V l i 2,. In a milling machine, a cutter spindle, a longitudinally and vertically movable supportin Which said spindle is journaled eccentrically, said support having mutilated circumferentialthreads and a series of longitudinal teeth, a Worm engaging said teeth for partially rotating said support av gear engaging said threads for adjusting said support longitudinally, alpinion carried by said spindle, an annular gear surrounding Vsaid support and said spindle having inter- Hnal teethengaging and driving'said pinion,

and a worm for driving said annular gear. 3. A' milling machine including a Worktable,l a cutter-spindle, a rotatable-reciprooatable support for ysaid spindle, an annular driving member encircling said support and in its periphery, its inner surface comprising an internal gear, a pinion rigid on said spindle disposed eccentrically in said memsaid spindle having worm-gear teeth formed ber and said support and meshing and driven by said internal gear, means for Inovixplg said spindle toward and away from said t Ible without disturbing said spindle driving mechanism, and independent means for moving said support and said spindle longitudinally without unmeshing said pinion Vand said internal gear.

ing supporting the free end of said'spindle.

5. vIn a milling machine, the combination with the spindle and a pinion carried by said spindle, of an annular member having internal teeth meshing and driving said pinion, said member arranged eccentrically to the axis of said spindle and pinion for permitting thepadjustment of the spindle and pinion, and a worm engaging the periphery of said member for driving said parts.

6. In a milling machine, the combination with a table and a cutter carrying spindle, of a cylindrical support in which said spindle is eccentrically journaled, said support having a series of teeth on its exterior surface extending longitudinally thereof, means comprising a worm engaging said teeth for rotating saidsupport to raise and lower the spindle, means for drivingvsaid spindle and means independent of said driving means for moving saidsupport endwise.

7 In a milling machine, the combination with Va table and a cutter carrying spindle, of means for raising and lowering said'spindle, a.v pinion rigid on said spindle, an annulary driving member surrounding said spindle, said spindle being arranged eccentrically in said member, the inner circumference of said driving member having teeth meshing with and driving said pinion, theV with a table and a cutter carrying spindle,

a pinionfrigid on said spindle, an annular driving member surrounding said spindle, said spindle being arranged eccentrically in said member, the inner circumference of said driving member having teeth meshing with and driving said pinion, the outer circumference of said member comprising a worm gear, a worm meshing with and driving said member, means for driving said worm, and means for bodily moving said spindle in an arc corresponding to the inner circumference of said annular member whereby said spindle is moved toward and from said table. c

9. In a milling machine, a spindle supporting a cutterabove a work-table, a cylindrical support in which said spindle is journaled. eccentrically, an annular drivingV member surrounding said spindle 'having internal teeth, the periphery of said member having worm-teeth, a pinion carried by ,said spindle meshing and driven` by said internal teeth,y a worm engaging and driving said member, means for-rotating said support for Y adjustingsaid spindle vertically relatively to said table, and means for reciprocating said spindle for adjusting'V the-cutter horizontally relatively to the table.

In testimony whereof I aiiix my signature.

lCARL GABRI'ELSON. 

